Hi, Tom (and list):
Please find responses below:
>Would you, for us non-scientists on the list, summarize Bradshaw's
thinking and the opposing view(s)? Please try to keep it in the realm
of what an English major or at least what a MLS major can comprehend.
A more thorough description is in my post from April 2, but here's a
very abbreviated summary:
Bertram / Cuddihy's model says baking works because it repairs the glue
that holds the media together.
Bradshaw / Bhushan's model says baking works because it makes the media
and other degraded fragments hold hands for awhile.
>Do any of the theories you explored about what causes sticky-shed
reveal why baking times would be increasing as the tapes get older?
The models summarized above answer the question, "Why does baking work?"
The question we're asking now is something closer to, "How are tapes
aging?" I think the first question probably is relevant to the second
question, but probably not in a direct, straight-line kind of way. It
makes logical sense that longer required baking times indicate more
advanced degradation. Is that really the case? Now might be a great
time for a series of studies, one every few years, comparing required
baking times with degraded binder in tape samples!
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